01: /*
02: * <copyright>
03: *
04: * Copyright 2000-2004 BBNT Solutions, LLC
05: * under sponsorship of the Defense Advanced Research Projects
06: * Agency (DARPA).
07: *
08: * You can redistribute this software and/or modify it under the
09: * terms of the Cougaar Open Source License as published on the
10: * Cougaar Open Source Website (www.cougaar.org).
11: *
12: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
13: * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
14: * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
15: * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
16: * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
17: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
18: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
19: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
20: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
22: * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23: *
24: * </copyright>
25: */
26: package org.cougaar.lib.web.arch.util;
27:
28: import java.io.IOException;
29:
30: import javax.servlet.Servlet;
31: import javax.servlet.ServletConfig;
32: import javax.servlet.ServletException;
33: import javax.servlet.ServletRequest;
34: import javax.servlet.ServletResponse;
35:
36: /**
37: * An internal wrapper for Servlets that implement
38: * <code>SingleThreadModel</code> -- <b>note</b> that
39: * if a Servlet is registered under multiple names then
40: * this will only synchronize per <i>name</i>.
41: */
42: public final class SynchronizedServlet implements Servlet {
43: private final Servlet s;
44:
45: public SynchronizedServlet(Servlet s) {
46: this .s = s;
47: }
48:
49: // synchronize on service requests.
50: public void service(ServletRequest req, ServletResponse res)
51: throws ServletException, IOException {
52: synchronized (this ) {
53: s.service(req, res);
54: }
55: }
56:
57: // forward the rest
58: public void init(ServletConfig config) throws ServletException {
59: s.init(config);
60: }
61:
62: public ServletConfig getServletConfig() {
63: return s.getServletConfig();
64: }
65:
66: public String getServletInfo() {
67: return s.getServletInfo();
68: }
69:
70: public void destroy() {
71: s.destroy();
72: }
73:
74: public String toString() {
75: return s.toString();
76: }
77: }
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